HomeMy WebLinkAboutPermit File BLD-2021-0730 3204 R AvenueResidential Building Air Leakage Test (Blower Door Test) Results
Permit #: Unit # 4
House address or lot number: _ 3204 R Ave,
City: Anacortes
Cond. Floor Area (ft2): 1240
Source (circle one): Plans
Zip: 98221
Age of house: Brand New
Estimated Measured
Results shall be reported as Air Changes per Hour at 50 Pascals (ACH50) and shall be calculated as follows:
ACH50 = (CFM50 x 60)/ Volume
Where:
CFM50 = Blower door fan flow at 50 Pascal pressure difference
Volume = Conditioned Floor Area of the housing unit x ceiling height
Blower Door Test Result: 3•0 _ ACH50
570 CFM@50Pa
Ring (circle one if applicable): Open A B C
Blower Door Fan Location: Garage Door Entrance Weather Conditions: Sunny
I certify that these blower door results are accurate and determined using standard industry protocol.
Company Name: Master Insulation & Services LLC
Technician: Florentina Galvez
Technician Signature: Date: Oct. 2022
Phone Number: 360-424-5179
2015 Washington State Energy Code reference:
R402.4.1.2 Testing. The building or dwelling unit shall be tested and verified as having an air leakage rate of not
exceeding 5 air changes per hour. Testing shall be conducted with a blower door at a pressure of 0.2 inches w.g. (50
Pascals). Where required by the code official, testing shall be conducted by an approved third party. A written report
of the results of the test shall be signed by the party conducting the test and provided to the code official.,
fficial Testing
shall be performed at any time after creation of all penetrations of the building thermal envelope. Once visual
inspection has confirmed sealing (see Table R402.4.1.1), operable windows and doors manufactured by small business
shall be permitted to be sealed off at the frame prior to the test.
During testing:
I. Exterior windows and doors, fireplace and stove doors shall be closed, but not sealed, beyond the intended
weatherstripping or other infiltration control measures;
2. Dampers including exhaust, intake, makeup air, backdraft and flue dampers shall be closed, but not sealed
beyond intended infiltration control measures;
3. Interior doors, if installed at the time of the test, shall be open, access hatches to conditioned crawl spaces and
conditioned attics shall be open;
4. Exterior openings for continuous ventilation systems and heat recovery ventilators shall be closed and sealed;
5. Heating and cooling systems, if installed at the time of the test, shall be turned off; and
6. Supply and return registers, if installed at the time of the test, shall be fully open.
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